Finding the Fourth Proportional to 2,119.86, 3,176.91 and 962.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.86 : 3,176.91 = 962.90 : x
2. Step 2: Convert to fraction form
   2,119.86/3,176.91 = 962.90/x
3. Step 3: Cross multiply
   2,119.86x = 3,176.91 × 962.90
4. Step 4: Simplify right side
   2,119.86x = 3,059,046.64
5. Step 5: Solve for x
   x = 3,059,046.64/2,119.86
6. Step 6: Final answer
   x = 1,443.04